Your son's jealously is a good point. It extends to adults too... it's rude when friends and family stare at their phones too much. Some people use their phone

Your son's jealously is a good point. It extends to adults too... it's rude when friends and family stare at their phones too much. Some people use their phones more efficiently than others by combining tasks in the one session. More info can be read, more browsed on the large screen. On the other hand, some people use their phones in part to avoid social awkwardness, or fill in otherwise restful moments. This is significant because it's behaviour many wouldn't want to give up, even if we should. It raises the question of how connected to things we ought to be, a watch means you are more "jacked in" permanently. I'm not sure I want that. When I put my phone away in my bag, I'm putting the internet away, I've "disconnected". A watch feels like it's always there ready to pounce.